Disable sbcast tests for all front-end systems (e.g. Cray)

testsuite/expect/globals

@@ -1171,10 +1171,6 @@ proc test_front_end { } {
 			set front_end 1
 			exp_continue
 		}
-		"select/cray" {
-			set front_end 1
-			exp_continue
-		}
 		eof {
 			wait
 		}

testsuite/expect/test14.1

@@ -38,12 +38,11 @@ set matches     0
 
 print_header $test_id
 
-if {[test_bluegene]} {
-	send_user "\nWARNING: This test is incompatible with a Bluegene system\n"
-	exit $exit_code
+if {[test_front_end] != 0} {
+	send_user "\nWARNING: This test is incompatible with front-end systems\n"
+	exit 0
 }
 
-
 #
 # Report the sbcast usage format
 #

testsuite/expect/test14.2

@@ -38,9 +38,9 @@ set matches     0
 
 print_header $test_id
 
-if {[test_bluegene]} {
-	send_user "\nWARNING: This test is incompatible with a Bluegene system\n"
-	exit $exit_code
+if {[test_front_end] != 0} {
+	send_user "\nWARNING: This test is incompatible with front-end systems\n"
+	exit 0
 }
 
 #

testsuite/expect/test14.3

@@ -39,9 +39,9 @@ set version     0
 
 print_header $test_id
 
-if {[test_bluegene]} {
-	send_user "\nWARNING: This test is incompatible with a Bluegene system\n"
-	exit $exit_code
+if {[test_front_end] != 0} {
+	send_user "\nWARNING: This test is incompatible with front-end systems\n"
+	exit 0
 }
 
 #